At present, ________ elements are known, of which ________ are naturally occurring elements.

Correct option is D

At present, 118 elements are known, of which 94 are naturally occurring elements.​

• The remaining elements (from 95 to 118) have been synthesized in laboratories and are not found in nature.
  

Important Booster:

• The modern periodic law and table were invented by Henry Moseley in 1913.
• The first one who was able to organize all the known elements was Mendeleev, he gave the law called Mendeleev's Periodic Law.